Multidimensional family therapy

1. Introduction

Version followed: outpatient MDFT as developed by Howard Liddle and colleagues (University of Miami; now trained and certified by MDFT International). Two versions are described side by side where they differ: (a) the US outpatient version published as Liddle (2002), Cannabis Youth Treatment Series Vol. 5, 15 sessions over 12 weeks; (b) the European INCANT version, about two sessions a week for 5–7 months. The manual text itself is not drawn on, so session-level manual content comes from the publisher listing, an MDFT International trainer's slides, developer-team papers and trial protocols [uncertain: manual].

MDFT is a manualised, licensed family-based treatment for adolescents (roughly 10–21) with substance use and related problems: delinquency, aggression, school failure and co-occurring mental health disorders [source: Maine DHHS 2024; Rowe 2010]. Its core idea is that adolescent problems are multidimensional. Risk and protection operate across the teenager, the parents, family interaction and outside systems (school, peers, justice, leisure), so treatment has to work in all of these at once [source: Mos 2014; INCANT protocol 2010]. The family is the main lever of change. Renewed emotional connection between parent and teenager is treated as the base on which better parenting and monitoring are built, and better family functioning is how the teenager is helped towards a developmentally adaptive, drug-free lifestyle [source: EMCDDA review; Sherman, NIDA Notes]. MDFT draws on structural and strategic family therapy, developmental psychology and psychopathology, and an ecological perspective [source: EMCDDA review; Counselor Magazine 2011].

Delivery under the MDFT name requires agency and therapist certification through MDFT International (see Section 2, Certification).

2. Framework

Four domains (modules), worked in parallel

The four domains are not sequential phases. All four are assessed and treated throughout [source: Mos 2014; EMCDDA review; Rowe 2010].

Adolescent: engagement in treatment; motivation; drug use and related risk behaviour; emotional symptoms; identity, peer relations and prosocial involvement; skills; school reconnection; preparing the teenager for family sessions [source: Mos 2014; EMCDDA review; Rowe 2010].
Parent: engagement; raising emotional and behavioural involvement (love and commitment); reducing burnout; monitoring, limit-setting and house rules; parents working as a team; psychoeducation on age-appropriate expectations; parents' own substance use or mental health needs (with referral); preparing parents for family sessions [source: Mos 2014; EMCDDA review; Rowe 2010].
Family interaction: reducing conflict; strengthening attachment and communication; problem-solving in multi-person sessions, mainly through enactments [source: Mos 2014; EMCDDA review].
Extrafamilial: school, juvenile justice, psychiatry and other services, peers and leisure; the therapist advocates and gives clinical recommendations, may give court testimony, and helps the family deal with these systems themselves [source: Mos 2014; Rowe 2010]. INCANT lists six life domains: youth, parent, family, peers, school/work and leisure [source: INCANT protocol 2010].

Three stages

The stage names differ between sources. All describe the same three-part arc.

Stage	Names used	Goals	Typical content
1	"Assessment, Alliance Building and Motivation" (Mos 2014); "Build the Foundation" (Counselor Magazine 2011); "assessment" (EMCDDA)	Map problems and untapped strengths in every domain; build a working alliance with each family member and with key outside people; get the family to "buy in"; set goals and targets per domain	Individual teenager and parent interviews; family interviews with observed, therapist-directed interactions; meetings with school, court and mental health professionals [source: Rowe 2010; Mos 2014; EMCDDA review]
2	"Working the Goals / Requiring Changes" (Mos 2014); "Prompt Action by Working the Themes" (Counselor Magazine 2011); "treatment" (EMCDDA)	Change at several system levels at once; usually the most intensive stage; assessment continues	Skills, parenting work, enactments, case management, drug screens [source: Mos 2014; EMCDDA review]
3	"Seal the Changes and Exit" (Mos 2014; Counselor Magazine 2011); "maintenance" (EMCDDA)	Consolidate gains; prepare the teenager and family for their next developmental stage using what they learned; aftercare plan	Practising new behaviours in current and expected real-life situations; discharge and aftercare planning [source: Mos 2014; EMCDDA review]

Dose, format and setting

US outpatient (CYT Vol. 5): 15 sessions over 12 weeks, with case management [source: CYT Vol. 5 publisher page]. The EMCDDA review gives 12–15 sessions over 12–14 weeks. Individual trials used other doses, e.g. 60–90-minute weekly sessions for 4–6 months, or 90-minute sessions twice weekly for 12–16 weeks [source: EMCDDA review]. Which sessions of the 15 are individual, parent or family could not be verified [uncertain].
European INCANT: about two sessions a week for 5–7 months depending on severity. Sessions are split roughly equally between teenager alone, parent(s) alone and whole family. Representatives of school, work, friends or agencies may join [source: INCANT protocol 2010; INCANT outcome report].
Setting: home, office, school, community, placement or detention, and not limited to office hours [source: Mos 2014; INCANT protocol 2010]. The EMCDDA review states most sessions take place in the home [source: EMCDDA review].
Contact rules: family participation weekly; case management weekly or more often; a rotating on-call crisis phone after hours, with referral to emergency services when needed [source: Mos 2014].
Team: 3–5 certified therapists, one of whom is team supervisor, with weekly case meetings [source: INCANT protocol 2010]. Minimum for a new US site: two therapists and one supervisor [source: Maine DHHS 2024].

Criteria for moving between stages

No explicit transition criteria are given in the sources [uncertain]. A working rule consistent with the stage goals [synthesis]:

Stage 1 to 2: each core participant (teenager and at least one parent) can name a personal goal they are working on with you. An assessment across all four domains is written up. The teenager and parent attend reliably. The key outside people (e.g. probation officer, school contact) know the plan.
Stage 2 to 3: use is reduced or stopped on screens and self-report; there are fewer crises; parents monitor and set limits without you prompting; family conversations stay productive in session with less steering.
Discharge: the sources count as a success any of these: reduced high-risk behaviour, improved family functioning, or transfer to a more suitable level of care [source: Mos 2014].

Certification and fidelity (programme requirements)

Only certified agencies and therapists may deliver MDFT under its name, with full participation in MDFT quality assurance. Interventions must be designed in consultation with the MDFT trainer [source: Maine DHHS 2024].
Therapist pathway (as of 2024): 2.5–4 days of introductory training (20–32 h); 1–2 h of weekly study; up to 16 consultation calls of about 1–1.5 h (at least 13 required), each trainee presenting a training case; two intensive video reviews (months 1–2 and 5–6); two days of on-site live supervision (months 3–4); two knowledge assessments. Trainees start with no more than two training cases, take new cases monthly and carry a full caseload by month 5. Sessions are recorded for supervision, and urine screens are required where youth use substances [source: Maine DHHS 2024].
Supervisor pathway: supervisory training; supervisor exam and written test; practice supervision with recordings rated to a threshold; live demonstration; therapist development plans; use of the MDFT Portal [source: Maine DHHS 2024].
Fidelity measures: session contact logs (number, length, spacing and composition of sessions) and recorded family sessions rated by the developers. In INCANT, about one case in four was rated on 16 core therapist interventions using a 7-point scale [source: INCANT protocol 2010; INCANT outcome report]. The developers' observational adherence and competence measure is the Therapist Behavior Rating Scale (TBRS) [source: EMCDDA review]. TBRS items are not reproduced here.

3. Guiding principles

Problems are multidimensional, so assessment and intervention are too. Never treat drug use alone. Every plan names targets in all four domains [source: Mos 2014; Rowe 2010].
Co-occurrence is the norm, and both problems are primary. Treat substance use and psychiatric symptoms together and coordinate psychiatric care inside the plan [source: Rowe 2010].
The family is the main lever of change. Put most of your effort into parent and family work, even when the teenager is the identified patient [source: EMCDDA review; Rowe 2010].
Parents are key to success. Engage parents first and keep them engaged. Their communication with the teenager is linked to fewer high-risk behaviours [source: Mos 2014].
Emotional reconnection comes before parenting technique. Address parental stress, anger, hopelessness and despair before teaching monitoring or limit-setting [source: Sherman, NIDA Notes].
Developmental focus. Aim for an interdependent, not emotionally cut-off, parent–teen relationship. Encourage age-appropriate thinking and expectations [source: EMCDDA review; Mos 2014].
Assessment is a map and never ends. Assess strengths as well as deficits, and revise targets every session [source: Rowe 2010; Mos 2014].
Multiple alliances. Build a separate working alliance with the teenager, each parent and key outside people. Losing any one of them stalls the case [source: INCANT protocol 2010; Mos 2014].
Individualised, not one-size-fits-all. Choose targets from each family's risk and protection profile instead of following a fixed session script [source: EMCDDA review; Rowe 2010].
Practical and outreaching. Go to the home, school or court, work outside office hours, and remove concrete barriers through case management [source: INCANT protocol 2010; Mos 2014].
The present over the past. Explore past events only to the extent that they cause problems now [source: Mos 2014].
Instil hope and build on strengths. Present each family member and outside partner with a hopeful, strengths-based account of the case [source: Mos 2014; Rowe 2010].
Drug screens are for monitoring, not punishment. Treat a positive result as material for therapy [source: Mos 2014].
Engage resistance; do not avoid it. A secondary source describes MDFT as rolling with resistance, treating problem areas as openings for developmentally appropriate work [source: Counselor Magazine 2011] [uncertain: not confirmed in developer sources].
Prepare for life after treatment. Work towards parents and teenager managing without you [source: Mos 2014].
Supervision is part of the model. Present cases weekly in team meetings and use recorded sessions for supervision [source: INCANT protocol 2010; Maine DHHS 2024].

4. Intervention inventory

How to read this section. The sources name each intervention and its purpose, but they give little step-level detail, because the step-level content sits in the licensed manual and in MDFT International training. The steps below therefore combine what the sources state (tagged) with practical sequencing that is my own (tagged [synthesis]). Certified training and supervision come first. This inventory is not a substitute for them.

A. Stage 1: assessment and engagement

A1. Multidimensional assessment

Purpose: build the "map" for intervention across all four domains, covering strengths as well as problems. Start in session 1 and keep it running throughout [source: Rowe 2010; Mos 2014].
Steps: (1) Interview the teenager alone and the parent(s) alone, and hold at least one family interview [source: Rowe 2010]. (2) Contact school, probation or court, and any mental health professionals involved [source: Rowe 2010]. (3) Cover substance use and other risk behaviour, emotional symptoms, school, peers, leisure, legal status, parenting practices, parents' own functioning, family interaction, and untapped strengths [source: Mos 2014; Rowe 2010; INCANT protocol 2010]. (4) Write a short case formulation: risk and protective factors per domain, and first targets per domain [synthesis]. (5) Revise it every week in team review [synthesis, consistent with weekly team meetings in INCANT protocol 2010].
Example language (illustrative): to a parent: "I need to understand your son's whole life, not just the drugs: school, friends, what home is like for you. I'll also ask what's still going well, because that's what we'll build on."
Watch for: an assessment that covers only the teenager. If the parent and outside-system columns of your map are empty, the assessment is incomplete [synthesis].

A2. Observed, therapist-directed family interaction (assessment enactment)

Purpose: see the family's interaction patterns directly instead of relying on accounts of them [source: Rowe 2010].
Steps [synthesis]: (1) In an early family session, pick a live, moderate-intensity topic (e.g. curfew, phone use). (2) Ask the family members to talk it over with each other while you watch. (3) Note who speaks, who interrupts, escalation and withdrawal, whether parents back each other up, and any moments of warmth. (4) Stop it before it escalates into a rupture. (5) Feed one strength back to the family.
Example language (illustrative): "Rather than tell me about the curfew fights, would you two talk about it now, the way you would at home? I'll stay out of it for a few minutes."
Watch for: escalation into threats or contempt. Interrupt early. This is assessment, not yet change work [synthesis].

A3. Adolescent engagement and alliance building

Purpose: turn an often reluctant, referred teenager into a participant who has their own reasons to be there [source: Rowe 2010; Sherman, NIDA Notes].
Steps: (1) Hold individual time with the teenager early [source: Sherman, NIDA Notes; INCANT protocol 2010]. (2) Set therapeutic goals that matter to the teenager, e.g. getting probation or school off their back, more freedom at home [source: Sherman, NIDA Notes, "meaningful therapeutic goals"; examples synthesis]. (3) Keep contact regular and consistent, and follow through on every promise you make [source: Rowe 2010]. (4) Show you will act for them in outside systems, e.g. at school or with probation [synthesis, consistent with extrafamilial role in Mos 2014]. (5) Be clear that you are not the parents' agent or the court's, while being honest about what you must share [synthesis].
Example language (illustrative): "Everyone's told you what they want from you. What do you want out of the next three months? If it's getting your probation officer to ease up, that's something I can actually help with."
Watch for: the teenager starts bringing topics, turns up without chasing and names their own goal. Warning signs are monosyllabic answers by session 3 or missed sessions; respond as in Section 5 [synthesis].
Note: specific adolescent engagement themes published by the developer team are not given in the sources [uncertain].

A4. Parent engagement: acknowledging parental distress

Purpose: engage parents who are exhausted, angry or hopeless, and lower their burnout, so they can re-invest in the teenager [source: Sherman, NIDA Notes; Mos 2014].
Steps: (1) Meet parents alone [source: Sherman, NIDA Notes]. (2) Invite and acknowledge their stress, anger, hopelessness and despair directly before turning to parenting technique [source: Sherman, NIDA Notes]. (3) Offer emotional support [source: Sherman, NIDA Notes]. (4) Instil hope: describe how parents' involvement drives change [source: Mos 2014]. (5) Agree on the parents' role in treatment: weekly participation [source: Mos 2014].
Example language (illustrative): "Before we talk about rules, I want to hear what this year has been like for you. It sounds like you've been fighting this on your own for a long time."
Watch for: blaming the parent, or skipping straight to parenting advice. Either can lose the parent. It is working when parents attend and start asking "what can I do" [synthesis].

A5. Early alliance with outside systems

Purpose: gain the cooperation of probation, judges, school staff and psychiatrists, so the systems pull in the same direction as treatment [source: Rowe 2010].
Steps: (1) With consent, contact each key professional in Stage 1 [source: Rowe 2010]. (2) Give them a clear, theory-based and hopeful analysis of the family, and agree shared accountability [source: Rowe 2010]. (3) Clarify any monitoring plan, e.g. weekly drug screens and meetings [source: Rowe 2010]. (4) Agree how and how often you will report progress [synthesis].
Example language (illustrative), to a probation officer: "Mum is now checking his whereabouts every evening and we test weekly. Could we agree that you hear from me every two weeks, rather than violating him for the first slip?"
Watch for: systems acting without you (e.g. a sudden placement). That signals the alliance needs repair [synthesis].

B. Adolescent domain

B1. Motivational enhancement

Purpose: build the teenager's own motivation to change use and risk behaviour [source: Mos 2014; Sherman, NIDA Notes].
Steps [synthesis]: (1) Explore what use gives them and what it costs them, in their terms. (2) Link change to the teenager's own goals (A3). (3) Accept small commitments, e.g. a week without use before a court date. (4) Review those commitments every session.
Example language (illustrative): "You said weed helps you sleep and keeps you calm. You also said it's why you're on probation. Where does that leave you?"
Watch for: a teenager who complies verbally while use continues. Check against screens (E5) [synthesis].

B2. Skills teaching and practice

Purpose: give the teenager concrete strategies for solving problems and for alternatives to drug use and delinquency [source: Sherman, NIDA Notes; Mos 2014].
Content named in the sources: relapse prevention and substance-use triggers; coping with stress; anger management; assertiveness; addressing thoughts about substance use; drug education [source: INCANT protocol 2010; INCANT outcome report]. INCANT notes that these elements were common to MDFT and its comparison treatment, so they are not unique to MDFT [source: INCANT protocol 2010].
Steps [synthesis]: (1) Choose one skill tied to a recent real incident. (2) Explain it briefly. (3) Rehearse it in session, e.g. a refusal or a calm reply to a parent. (4) Set a specific real-life practice. (5) Debrief next session.
Example language (illustrative): "Last Friday you were at Jay's and someone passed a joint. Let's replay it. What could you have said, and where could you have gone instead?"
Watch for: skills taught in the abstract. Anchor each one to a real situation and to the family sessions [synthesis].

B3. Prosocial development: school, peers, activities

Purpose: reconnect the teenager with school and build new positive relationships with peers and adults, plus prosocial activity, as alternatives to drug-using peers [source: Rowe 2010; Mos 2014; EMCDDA review].
Steps: (1) Identify one school target and one leisure or peer target [synthesis]. (2) Arrange school changes, tutoring or vocational routes, including GED or diploma work, together with school staff and parents [source: Rowe 2010]. (3) Help the teenager find and get to a concrete prosocial activity [source: Mos 2014; specifics synthesis].
Example language (illustrative): "If school's a write-off this term, let's look at the vocational course. Who would you need to talk to, and can I come along?"
Watch for: activity plans that parents haven't agreed to or can't support. Bring them into the family session [synthesis].

B4. Preparing the teenager for family sessions

Purpose: make sure the teenager arrives at joint sessions ready to say something important in a way parents can hear [source: Mos 2014, "preparing for family sessions"].
Steps [synthesis]: (1) In individual time, identify what the teenager most wants parents to understand. (2) Help them put it into one or two clear sentences, free of insults. (3) Rehearse it. (4) Agree what you will do if it goes badly, e.g. you step in or take a break. (5) Get explicit permission to raise it.
Example language (illustrative): "You said your dad only notices when you mess up. Want to tell him that on Thursday? Let's work out how you'd say it so he actually listens."
Watch for: the teenager feeling ambushed or betrayed when private material is raised. Never bring up individual-session content without agreement [synthesis].
Note: the developer team has published on resolving parent–adolescent impasses in MDFT (Diamond & Liddle, Resolving a therapeutic impasse between parents and adolescents in MDFT). That paper is not drawn on, so its procedure is not described here [uncertain].

B5. Specialised adolescent protocols: depression, trauma, sexual risk

Purpose: address co-occurring problems inside MDFT instead of referring them all out [source: Rowe 2010].
What the sources say: the developer team describes protocols for depression, trauma and high-risk sexual behaviour. The trauma work addresses stress and coping in both teenager and parents and uses the family as a healing unit [source: Rowe 2010]. The protocol steps are not described in the sources [uncertain].
Practical stance [synthesis]: screen routinely; if you are not trained in an MDFT protocol for the problem, add an evidence-based component or a referral and coordinate it through the MDFT plan.

C. Parent domain

C1. Parental emotional reconnection

Purpose: restore the parent's caring and commitment towards the teenager, which the sources treat as the basis for changing parenting practices [source: Sherman, NIDA Notes; Mos 2014, "increase love and commitment"].
Steps [synthesis, built on the stated aim]: (1) After acknowledging distress (A4), ask about the teenager when younger and about times they felt close. (2) Ask what the parent fears for the child now. (3) Help the parent see the teenager's behaviour as including struggle, fear or hurt, not only defiance. (4) Link reconnection to influence: teenagers listen to parents they feel connected to.
Example language (illustrative): "Tell me about her at ten. What were you two like together? ... When you lie awake worrying, what is it you're scared will happen to her?"
Watch for: softer tone and the parent saying they want to try again. If anger stays fixed, return to the parent's own burden first [synthesis].

C2. Parenting practices: monitoring, limits, house rules, teamwork

Purpose: improve monitoring, limit-setting, discipline and support; set clear house rules; get parents (or parent and co-carer) working as a team [source: Mos 2014; EMCDDA review; Rowe 2010].
Steps [synthesis]: (1) Pick one or two concrete rules, e.g. curfew or where-are-you check-ins. (2) Get both carers to agree the rule and the consequence before it is raised with the teenager. (3) Rehearse how they will say it. (4) Present it in a family session (D1). (5) Review follow-through weekly, and adjust it without dropping it.
Example language (illustrative): "Let's agree between the two of you, before she's in the room, what happens if she's not home by ten. If you two disagree in front of her, she'll find the gap."
Watch for: rules that are too many, too harsh, or not enforced; one parent undermining the other. It is working when monitoring is consistent and the parents report fewer surprises [synthesis].

C3. Psychoeducation for parents

Purpose: inform parents about age-appropriate expectations, maladaptive behaviour and high-risk behaviour, including drugs [source: Mos 2014].
Steps [synthesis]: short, targeted explanations tied to the family's actual situation, not lectures. Check understanding and invite the parent to apply each point to their own teenager.
Example language (illustrative): "At fifteen, wanting more privacy is normal. Lying about where he sleeps is not. Let's sort out which is which in your house."
Watch for: information used as ammunition against the teenager [synthesis].

C4. Addressing parents' own functioning

Purpose: deal with parental substance use, mental health problems or overload that block parenting [source: Rowe 2010; Mos 2014].
Steps: (1) Ask about the parent's own use, mood and stressors, respectfully and in private [synthesis]. (2) Refer for the parent's own treatment where needed [source: Mos 2014]. (3) Keep coordinating so the parent's treatment supports their parenting role [synthesis].
Example language (illustrative): "You've carried a lot this year. How are you sleeping and coping, and is drinking part of how you get through the evenings?"
Watch for: shame and withdrawal. Frame it as support for the parent, not blame [synthesis].

C5. Preparing parents for family sessions

Purpose: help parents come to joint sessions able to listen and to speak with less blame [source: Mos 2014].
Steps [synthesis]: (1) Agree one thing the parent will say: an acknowledgement, a concern or a rule. (2) Rehearse it in calm, short language. (3) Coach the parent to listen to the teenager's point without rebuttal. (4) Agree on a signal for when you will step in.
Example language (illustrative): "When he says you never listen, the hardest and most useful thing would be to say: 'Tell me more.' Can you try that on Thursday?"
Watch for: the parent re-litigating the past in session. Remind them of the agreed focus [synthesis].

C6. Parent involvement outside the home

Purpose: encourage parents to take part in the teenager's life outside the home, e.g. school coordination and monitoring medication [source: EMCDDA review; Rowe 2010].
Steps [synthesis]: take the parent to school meetings, have the parent lead them as confidence grows, and agree medication-checking routines with the prescriber.
Example language (illustrative): "Next week I'll come with you to the school meeting; the one after, you lead and I'll back you up."
Watch for: the therapist doing it all. Hand over gradually [synthesis].

D. Family interaction domain

D1. Enactments to practise communication and problem-solving

Purpose: change family interaction patterns live, practising communication and problem-solving with the therapist coaching [source: Mos 2014; EMCDDA review].
Steps [synthesis; enactment as used in structural family therapy, on which MDFT draws]: (1) Prepare both sides first (B4, C5). (2) Set up the conversation and ask the family members to talk directly to each other, not to you. (3) Coach in the moment: block interruptions, ask for specifics, slow down escalation, and prompt acknowledgements. (4) Highlight small successes. (5) Close with one agreed concrete step and a home practice.
Example language (illustrative): "Turn your chair to your mum and tell her, not me ... Mum, before you answer, can you tell him what you heard?"
Watch for: contempt, threats or the teenager walking out. Pause and split into individual time, then come back (see Section 5). It is working when the exchange lasts longer without escalation and both sides make an acknowledgement [synthesis].
Note: the developer-specific method for moving a stuck conversation from complaint to deeper themes ("shifting") is described in the Diamond & Liddle impasse paper, which is not drawn on [uncertain].

D2. Guided discussion of family problems, focusing on strengths and conflict reduction

Purpose: discuss family problems under the therapist's guidance in a way that builds on family strengths, improves communication and reduces conflict [source: Sherman, NIDA Notes; EMCDDA review].
Steps [synthesis]: (1) Set an agenda with the family. (2) Keep the focus on current problems, going into the past only where it drives present problems [source: Mos 2014]. (3) Name strengths as you see them. (4) Move from complaint to problem-solving.
Example language (illustrative): "You've managed three calm dinners this week, so we know you can do this. Let's use that to tackle the weekend problem."
Watch for: sessions that turn into history-telling. Steer back to now [synthesis].

D3. Family psychoeducation

Purpose: help the family become a learning environment that supports the teenager's development [source: Mos 2014].
Steps [synthesis]: brief joint explanations, e.g. of how triggers and relapse work, followed by working out together what this means for their home.
Example language (illustrative): "Cravings come in waves and pass. What could each of you do on a Friday night when the wave hits?"
Watch for: the teenager feeling lectured. Ask them to explain the point to their parents instead [synthesis].

E. Extrafamilial domain

E1. Case management

Purpose: remove practical barriers to change, e.g. court dates, medical appointments, job searches and navigating services, weekly or more often [source: Mos 2014]. The CYT version integrates case management into treatment [source: CYT Vol. 5 publisher page].
Steps [synthesis]: (1) Keep a running barrier list per family. (2) Do one concrete task each week, together with the family where possible. (3) Teach the family to do the next one themselves.
Example language (illustrative): "The court letter is Thursday. Let's ring the solicitor now, together, so you know what to expect."
Watch for: case management crowding out therapy, or creating dependence. Hand tasks over in Stage 3 [synthesis].

E2. School collaboration

Purpose: get school changes, special programmes, tutoring or vocational training that reconnect the teenager with education [source: Rowe 2010].
Steps: (1) Meet school staff together with parents [source: Rowe 2010]. (2) Agree specific changes, e.g. a timetable, a programme or a mentor [source: Rowe 2010; examples synthesis]. (3) Provide or link to tutoring or vocational routes, including GED or diploma [source: Rowe 2010]. (4) Set a review date [synthesis].
Example language (illustrative), to a head of year: "His attendance went from two to four days since we started. What would it take to keep his place on the course?"
Watch for: school treating the meeting as a step towards exclusion. Bring progress data and a plan [synthesis].

E3. Juvenile justice collaboration and court work

Purpose: build collaborative relationships with probation officers and judges, clarify monitoring plans, show that family-focused change is practical, and report progress to the court [source: Rowe 2010]. The team may give court testimony when needed [source: Mos 2014].
Steps: (1) Agree the monitoring plan, e.g. weekly drug screens and meetings [source: Rowe 2010]. (2) Send regular progress information to judges [source: Rowe 2010]. (3) Give clinical direction and recommendations; testify if required [source: Mos 2014]. (4) Prepare the teenager and parents for hearings [synthesis].
Example language (illustrative), to a judge or in a report: "The family has attended 14 of 16 sessions; the last three screens were negative; the parents now enforce an agreed curfew."
Watch for: the teenager seeing you as part of the court. Be transparent with them about what you report [synthesis].

E4. Psychiatric collaboration and medication monitoring

Purpose: integrate psychiatric treatment into the overall plan [source: Rowe 2010].
Steps: (1) Refer for psychiatric evaluation when indicated [source: INCANT protocol 2010; Rowe 2010]. (2) Use joint calls or visits with the child psychiatrist to monitor symptoms, adherence and effect [source: Rowe 2010]. (3) Encourage the family to monitor medication actively, presenting it as a way to reduce symptoms and improve functioning [source: Rowe 2010].
Example language (illustrative): "Shall we call Dr. K together this week so she hears directly how he's sleeping on the new tablets?"
Watch for: medication used to replace family work, or stopped without telling anyone [synthesis]. No dosing guidance is given here.

E5. Urine drug screens

Purpose: monitor use, not punish it. A positive screen is an opportunity to identify triggers, build avoidance skills and encourage the teenager to tell the parents about use [source: Mos 2014]. Screens are a recommended component, accepted by virtually all families in the INCANT pilot [source: INCANT protocol 2010], and are required in US certified programmes serving youth who use substances [source: Maine DHHS 2024].
Steps: (1) Explain screening to teenager and parents at the start as a monitoring tool [source: Mos 2014; wording synthesis]. (2) Screen on a regular schedule [synthesis; weekly screens under probation monitoring in Rowe 2010]. (3) Discuss a positive result first in individual time: what happened and what triggered it [source: Mos 2014]. (4) Plan avoidance skills [source: Mos 2014]. (5) Coach the teenager to disclose the result to the parents in a family session [source: Mos 2014].
Example language (illustrative): "This positive isn't a verdict, it's information. Walk me through Saturday ... OK, so how do you want to tell your dad, and what do you want him to do differently?"
Watch for: parents responding with harsh punishment. Prepare them beforehand (C5). Note that duties to report results to the court or probation must be agreed and explained at the start [synthesis].

E6. Crisis availability

Purpose: respond to crises out of hours [source: Mos 2014].
Steps: a rotating on-call phone shared by the team's clinicians, with referral to emergency services when needed [source: Mos 2014]. Give every family the number and the rules for its use [synthesis].
Watch for: suicide or self-harm risk. Use standard structured risk assessment, safety planning and lethal-means counselling (safe storage or removal of medicines and other means), involving parents, and escalate to emergency services when the risk is imminent [synthesis; standard practice].

E7. HIV/STD risk-reduction module (multifamily groups)

Purpose: reduce sexual risk behaviour as part of ongoing MDFT, using multifamily groups [source: Rowe 2010; Sherman, NIDA Notes].
Published format (juvenile justice adaptation): the teenagers received a one-session CDC risk-reduction programme while in detention. MDFT began 1–2 months after release and included three 2-hour multifamily group sessions to raise awareness of HIV/STD risk and encourage behaviour change [source: Sherman, NIDA Notes]. Session contents were not described [uncertain].

F. Stage 3: sealing the changes and exit

F1. Consolidation and generalisation

Purpose: secure the changes and help the family keep practising new behaviours in current and expected real-life situations [source: Mos 2014; EMCDDA review].
Steps [synthesis]: (1) Review gains with each subsystem and attribute them to the family's own efforts. (2) Anticipate the next developmental stage, e.g. a school transition or turning 18, and rehearse how the family would handle it. (3) Space out sessions.
Example language (illustrative): "What did you two do differently that got you here? ... Next year he'll want a car and a later curfew. How will you sort that out without me?"
Watch for: a crisis just before the end. Treat it as a rehearsal, not a failure [synthesis].

F2. Aftercare planning and discharge

Purpose: make aftercare plans and end treatment [source: Mos 2014]. The sources also count transfer to a more suitable level of care as a successful outcome [source: Mos 2014].
Steps [synthesis]: write a short plan with the family: warning signs, who does what, and which services, activities or mutual-aid groups continue; send it to the agreed outside professionals.
Watch for: abrupt endings after a good week. Plan the taper in advance [synthesis].

G. Residential adaptation (secondary source; not core outpatient MDFT)

A 2011 trade article describes an MDFT-informed residential programme (Newport Academy; minimum 45-day stay) [source: Counselor Magazine 2011]. Its elements were: a one-day Parent Intensive in week 1, without the teenager, where parents tell their story, hear clinical impressions and help set goals; a multigenerational genogram drawn by the teenager and reviewed and edited by the parents; parents introduced to Al-Anon and programme rules; weekly family therapy and a full-day Family Program; a 2.5-day Family Intensive (week 5); experiential work in real settings (e.g. accompanying the teenager to a mutual-aid event or a high-risk place); and a written "home contract" for discharge handed to outpatient providers. Equine therapy, psychodrama and sculpting were programme add-ons, not MDFT components [source: Counselor Magazine 2011]. Treat this as an adaptation, not as MDFT International's model; it was not confirmed in developer sources [uncertain].

5. Handling problems

The sources say little about troubleshooting. Most guidance below is my synthesis, built on MDFT's stated principles. Sourced points are tagged.

Families who are hard to engage or drop out. Engagement is a known obstacle with the most troubled families [source: EMCDDA review]. Respond with regular, consistent contact and strict follow-through [source: Rowe 2010]; go to the home or another convenient place, outside office hours if needed [source: INCANT protocol 2010]; do one concrete case-management task early to show value [source: Mos 2014; timing synthesis]. Chase missed sessions within 24 hours by phone or a home visit; never close a case after a single no-show [synthesis].
Reluctant or hostile teenager. Spend more individual time; anchor goals in what the teenager wants (A3); act visibly for them with outside systems; move family work to a later stage [synthesis]. One secondary source frames resistance as something to engage, not avoid [source: Counselor Magazine 2011] [uncertain].
Parent who is burnt out, blaming or wants the therapist to "fix" the teen. Go back to A4/C1: acknowledge their distress and reconnect them before asking for any new parenting behaviour [source: Sherman, NIDA Notes]. Explain that MDFT works through the parents, and keep the first parenting task small [synthesis].
Stuck: no change after several weeks. Re-check the four-domain map for an untreated driver, e.g. a parent's own drinking, an undetected depression, a peer group or a school exclusion; take the case to team supervision; change the target, not just the effort [synthesis]. Start with the areas the family is willing to address and leave the harder themes until there is more trust [source: Counselor Magazine 2011].
Escalation or rupture inside a family session. Stop the enactment, separate into individual meetings briefly, repair with each person ("what did I miss?"), then return to a smaller, safer task [synthesis]. Afterwards, review how you prepared both sides (B4, C5) [synthesis].
Rupture with the therapist (one side feels you've taken the other's side). Name it, take responsibility, and give that person extra individual time. Make it explicit that you hold separate alliances with each family member [synthesis; multiple-alliance principle from INCANT protocol 2010].
Continued use or a positive screen. Treat it as information, not failure: identify triggers, build avoidance skills, coach disclosure to parents [source: Mos 2014]. If the pattern persists, step up intensity (more sessions, more structure, a psychiatric review) or consider a higher level of care. Transfer to a more suitable level of care counts as a successful outcome [source: Mos 2014].
Non-adherence to home tasks or parental rules. Make tasks smaller and more concrete; rehearse them in session; check what got in the way, especially a parent's own overload (C4) [synthesis].
Overwhelm: a family flooded by crises or a clinician overloaded. Prioritise safety and one practical barrier each week. Use the team: in-depth weekly supervision and multidisciplinary planning help stop families "regressing into chaos" [source: Counselor Magazine 2011; weekly team meetings in INCANT protocol 2010]. Use the on-call system for out-of-hours crises [source: Mos 2014].
Safety: violence, abuse, suicidality. Assess and act on child protection and domestic violence concerns first; enactments are paused while the risk is live. For suicide or self-harm risk, use structured risk assessment, safety planning with parents, and lethal-means counselling (safe storage or removal), escalating to emergency services when risk is imminent [synthesis; standard practice].
Conflicting demands from the court, probation or school. Agree the monitoring plan and reporting routine at the start [source: Rowe 2010]. Tell the teenager and parents what is shared and why, so that screens and reports do not come as a surprise [synthesis].
Confidentiality across individual sessions. Agree from the start what stays private and what must be shared, e.g. safety or court conditions. Only take individual material into family sessions with permission (B4) [synthesis].
Separated, absent or multiple carers. Engage every adult with a parenting role, including grandparents and step-parents, and work on carers acting as a team (C2). Hold separate parent sessions when conflict between carers is high [synthesis].
Fidelity drift. Watch for drifting into individual therapy for the teenager alone, or into pure case management. Compare session logs against the expected roughly equal mix of teen, parent and family sessions [source: INCANT protocol 2010], and review recordings in supervision [source: Maine DHHS 2024].
Not certified. A clinician who is not certified may use MDFT principles but should not describe the work as MDFT [source: Maine DHHS 2024 on certification and quality-assurance requirements; wording synthesis].

Sources

Sources:

Multidimensional Family Therapy for Adolescent Cannabis Users, Vol. 5 (Chestnut store listing)
HRB National Drugs Library record: Liddle (2002), MDFT for adolescent cannabis users (record page only)
Introduction to MDFT, Estonia workshop, 4 June 2014 (K. Mos, international MDFT trainer), cited as "Mos 2014"
EMCDDA/EUDA: Multidimensional family therapy for adolescent drug users: a systematic review, cited as "EMCDDA review"
Rowe (2010), MDFT: addressing co-occurring substance abuse and other problems among adolescents (PMC), cited as "Rowe 2010"
INCANT trial protocol, BMC Psychiatry 10:28 (2010), cited as "INCANT protocol 2010"
INCANT outcome report: MDFT lowers the rate of cannabis dependence in adolescents (Drug and Alcohol Dependence; repository copy), cited as "INCANT outcome report"
Sherman, C., NIDA Notes feature on MDFT, cited as "Sherman, NIDA Notes"
Maine DHHS Children's Behavioral Health Services (2024), MDFT information, cited as "Maine DHHS 2024"
Counselor Magazine (2011), Smith, Nosal, Cafferty & Sowle, MDFT in a residential setting, cited as "Counselor Magazine 2011"
Anhoriga.se record for Rowe (2010) (abstract only)